Textile spindle



1953 A. P. BROUILLARD 2,625,336

TEXTILE SPINDLE Filed July 6, 1950 INVENTOR. fl/b erf P B roa ZV/av'd AT TO RNGYS Patented Jan. 13, 1953 UNITED STATES PATENT OFFICE TEXTILESPINDLE Albert P. Brouillard, Woonsocket, R. I. Application J 1115 6,1950, Serial No. 172,205-

2 Claims.

This invention relates to improvements in a spindle for mules, twisters,winders and like textile machines.

Spindles for the above said machines are usually provided with a stop atthe lower end thereof for the bobbin and this stop also providesfrictional engagement with the inner surface of the bobbin to hold thebobbin in position and drive the same. This stop is usually of afrustoconical formation. Bobbins vary in diameter because ofmanufacturing tolerances and when positioned on said stops will vary intheir distances from the lower end extremity thereof; consequently, thewind of the yarn or thread does not start at the same level on eachbobbin with regard to the lower end thereof, nor will the wind extend tothe same height on all the bobbins in a set thereof with regard to theupper end thereof. Therefore, there is a portion of the length of eachbobbin free of yarn or threads which is available for winding yarn orthread thereon and this can be used if all the bobbins were seated atthe same location on all of the spindles of a machine.

An object of the invention is to provide a spindle so constructed thatthe bobbins will be all seated at the same location on the spindles of amachine.

Another object of this invention is to provide a spindle so constructedthat the bobbins will be resiliently held thereon.

Another object of this invention is to provide for reconstructing theexisting spindles of a machine so that the bobbins will all be held atthe same level on said spindles.

A more specific object of the invention is the provision of a bobbinholder which will firmly and resiliently hold a bobbin onto the spindleand which holder will be readily attached to or detached from thespindle.

With these and other objects in view, the invention consists of certainnovel features of construction, as will be more fully described andparticularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1 is an elevational view of a portion of a spindle showing a coreor bobbin in section held thereon;

Figure 2 is a sectional view taken substantially along line 2-2 ofFigure 1;

Figure 3 is a central sectional view taken substantially along line 3-3of Figure 2;

Figure 4 is a central sectional view of the body portion of the holdershown in Figure 3;

Figure 5 is a central sectional view of an end or closure member; and

Figure 6 is a sectional view forming part of the holder.

Referring to the drawings, I0 designates generally a portion of atextile spindle having a blade I I, the upper portion I2 of which isslightly tapered. A whorl I3 is fixed to the blade for rotating thesame. The blade is positioned within a spindle base (not shown) andfinds bearing therein in a usual manner. From the whorl I3 there extendsupwardly a bobbin stop I4 which is of frustoconical formation so as totightly receive thereon the lower portion of a core or bobbin I 5 onwhich yarn, thread, or similar material is wound to package the same.There are a plurality of these spindles on each machine and theconstruction thereof so far described is usual manufacture and wellknown in the textile art.

Bobbins, as previously stated, vary in inner diameters and one of largerdiameter will seat further down on the stop I4 than a bobbin of smallerinner diameter. The builder mechanism of the machine is set to start thewind of the yarn at a level determined by the bobbin seating the leastdepth on the said stop, and the dolfing is made when the bobbin isfilled to a height which is determined by the bobbin extending furtherdown on the stop I4. Thus, the entire available length of the bobbin topackage yarn thereon is not utilized on all of the bobbins. Further,this makes for non-uniformity of the yarn package.

In carrying out my invention, I provide an abutment or seat I6 at thelower end of the stop I4. The seat I6 may be formed of the same piece ofmaterial as the stop I4 but may be conveniently made in the form of aring I 1, as shown in the drawing, and sweated or otherwise secured inposition on the stop I I. The location of the upper edge of the ring I!is positioned sufficiently upwardly from the lower extremity of the stopI4 so that the diameter of the stop at the location of the upper edge ofthe ring ,I1 will be substantially equal to the bobbins of leastdiameter so as to permit all bobbins which are used to be easilypositioned to engage the seat I! and the engagement of the inner surfaceof the bobbins with the stop I4 will be sufilcient .to center the bobbinon the spindle.

In order to firmly hold the bobbin on the spindle I0 to be rotatedtherewith, I provide a member or bobbin holder designated generally I8which is mounted on the spindle at the upper portion of the blade I2.The member I8 or bobbin holder comprises a cylindrical body I9 (seeFigure 4) having a central opening 20, the Walls of which are tapered tocorrespond to the taper of the blade I2. The body I9 is reduced.

of a bowed spring at each end as at 2|, providing shoulders 22 and isfurther reduced as at 23 providing second shoulders 24. The body 18 alsohas a plurality of longitudinally or axially extending grooves 25 in theouter surface thereof which are equally spaced from each other, as shownin Figure 2. An outwardly bowed spring 26 which is arcuate in crosssection (see Figure 2) and is also longitudinally arcuate as in Figures3 or 6 and has the opposite end portions 21 thereof extending straightand in the same plane with each other. One spring 26 is positioned ineach of the said grooves 25. A cup member 28 having an outer diameterequal to the diameter of the body 19 is positioned at each end of thebody to rest upon the shoulders 24 and has a central opening 29 throughwhich extends the reduced portion 23, the portions 23 being thereafterupset in the fashion of a rivet to firmly fasten the members 28 at theends of the body I9. The members 28 have a flange 3| to extend about thereduced portions 21 and have firm engagement therewith, and the freeedge of said flange rests upon the shoulder 22, thus providing a pocket30 at each end of the grooves 25 and extending in continuation thereof.The end portion 21 of the spring 25 extends into the pocket 30 toconfine the spring within the grooves. The high point 26' of the springsnormally extends beyond the outer surface of the body l9 and the springs28 are of a length less than the length of the grooves so as to havefree axial movement therein to permit the springs to contract.

The holder I8 is assembled with the spindle by inserting the upperportion of the blade into the central tapered opening 20 to frictionallygrip said blade which will also position said holder to be concentricwith the stop I4. The diameter of the body I9 is chosen to be slightlyless than the inner diameter of the core or bobbin so that the same willbe firmly held by the action of the spring 26 only.

When the core or bobbin is slid onto the spindle, the said bobbin willrest upon the seat [6 and be centered by the stop 14 and holder (8 andthe springs in said holder l8 will also provide for firmly andresiliently holding the upper portion of the bobbin to provide a drivingrelationship between the said spindle and bobbin.

It will be apparent that I have disclosed a spindle construction whereinthe bobbins of varying diameters will be seated at the same level on allof the spindles of a machine and that the upper portion of the bobbinswill be additionally resiliently supported to provide a drive betweenthe spindle proper and the bobbin.

I claim:

1. A holder for bobbins and the like comprising a cylindrical bodyhaving a central tapered bore and a plurality of equidistantlongitudinal grooves formed in the outer surface thereof, a closure cupreceived at each end of said body having a flange extending over the endportions of said grooves to form pockets at each end of said grooves incontinuation thereof and longitudinally bowed springs arcuate in lateralcross section and of a length greater than the distance between saidpockets positioned in each of said grooves and with the end portions ofsaid springs extending into said pockets to confine and hold portions ofsaid springs within said grooves while the bowed portion extendsoutwardly thereby, and said pockets permitting longitudinal movement ofat least one end of the springs as flexing occurs.

2. A holder for bobbins and the like as set forth in claim 1 whereineach cup is secured by a portion of the body being headed over the cup.

ALBERT P. BROUILLARD.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 2,148,819 Killian Feb. 28, 19392,417,525 Smith Mar. 18, 1947 FOREIGN PATENTS Number Country Date151,806 Great Britain Oct. 7, 1920 763,507 France Feb. 12, 1934

